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Nata [24]
3 years ago
7

Fill in the next number in the list: 1,3,7,13,21,31​

Mathematics
2 answers:
Svet_ta [14]3 years ago
8 0

Answer:

The next number is 43.

Step-by-step explanation:

I hope that helped.

stepan [7]3 years ago
4 0

Answer:

should be 43

Step-by-step explanation:

because it goes up by 2 every time

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Answer : I need a graph or something
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3 years ago
1) Original price of a goldfish: $7.70<br>Discount: 30%​
Leni [432]

Answer:

$5.39

Step-by-step explanation:

In order to solve for this equation, we are going to multiply 7.70 by 0.3 to find how much money was taken which was 2.31.

Subtract2.31 from 7.70 to recieve your new price :)

7.70*0.3=2.31\\7.70-2.31=5.39

Hope this Helps!

8 0
3 years ago
It took Jaheim 2 hours to read the first 100 pages of a book what was his speed?
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If in 2 hours he read 200 pgs then in 1 hour will be 50 pgs
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3 years ago
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What is the Circumference of <br> r = 126 cm<br> C =?
exis [7]

Answer:

C≈791.68

Step-by-step explanation:

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7 0
2 years ago
A, b, c and d are positive integers, such that a+b+ ab = 76, c+d+ cd = 54. Find (a+b+c+d)·a·b·c·d.
lutik1710 [3]

Notice that

(1 + <em>x</em>)(1 + <em>y</em>) = 1 + <em>x</em> + <em>y</em> + <em>x y</em>

So we can add 1 to both sides of both equations, and we use the property above to get

<em>a</em> + <em>b</em> + <em>a b</em> = 76  ==>  (1 + <em>a</em>)(1 + <em>b</em>) = 77

and

<em>c</em> + <em>d</em> + <em>c d</em> = 54  ==>  (1 + <em>c</em>)(1 + <em>d</em>) = 55

Now, 77 = 7*11 and 55 = 5*11, so we get

<em>a</em> + 1 = 7  ==>  <em>a</em> = 6

<em>b</em> + 1 = 11  ==>  <em>b</em> = 10

(or the other way around, since the given relations are symmetric)

and

<em>c</em> + 1 = 5  ==>  <em>c</em> = 4

<em>d</em> + 1 = 11  ==>  <em>d</em> = 10

Now substitute these values into the desired quantity:

(<em>a</em> + <em>b</em> + <em>c</em> + <em>d</em>) <em>a</em> <em>b</em> <em>c</em> <em>d</em> = 72,000

6 0
3 years ago
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